TUNIS, Tunisia — Thousands of protesters chanting anti-government slogans joined a funeral march to lay to rest an assassinated Tunisian opposition politician, a display of the anger threatening the survival of a government once seen as a model in the region for the transition to democracy.

Adding to the tension, a bomb exploded in the early morning underneath a car at the port in Tunis outside a police station.

Though there were no injuries, the rare attack helped deepen the sense of unease in the North African country, where two opposition politicians have been gunned down in the past six months, apparently with the same gun.

Mohammed Brahmi’s coffin was carried by soldiers to Jellaz cemetery and buried next to Chokri Belaid, a fellow politician who was killed in February. Brahmi’s widow, five children and the army chief of staff accompanied the coffin through the capital.

“Down with the party of the Brotherhood,” chanted mourners, referring to the ruling Ennahda Party’s affiliation with the Muslim Brotherhood. “The people demand the fall of the regime.”

The Interior Ministry, citing physical evidence and witnesses, said Friday that Brahmi’s assassin was Boubakr Hakim, a militant and weapons smuggler who was part of the same al-Qaeda linked cell that murdered Belaid in February.

Spain came under repeated attack starting Thursday in what authorities called linked terrorist incidents, when a driver swerved a van into crowds in Barcelona’s historic Las Ramblas district, killing more than a dozen people and injuring scores of others. Early Friday, an attempted attack unfolded in a town down the coast

If there’s one superhero character whose rise might be most tied to the events of World War II, it is Captain America, who emerged from the minds of legends Joe Simon and Jack Kirby and sprung forth from an iconic 1941 debut cover on which Cap smacks Hitler right in the kisser.

A customer dining at Washington’s Oceanaire restaurant noticed an unusual line at the bottom of his receipt: “Due to the rising costs of doing business in this location, including costs associated with higher minimum wage rates, a 3% surcharge has been added to your total bill.”